//
//  SceneDelegate.swift
//  PDFSign
//
//  Created by 李永彬 on 2025/9/17.
//

import UIKit
import FirebaseCore
import FirebaseRemoteConfig

class SceneDelegate: UIResponder, UIWindowSceneDelegate {

    var window: UIWindow?


    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
        guard let windowScene = (scene as? UIWindowScene) else { return }
        configDatabase()
        preloadFonts()
        WJProgressHUD.configure()
        window = UIWindow(windowScene: windowScene)
        
        FirebaseApp.configure()
        
        // 获取远程配置
        RemoteConfigManager.shared.fetchConfig { success in
            if success {
                print("远程配置获取成功")
            } else {
                print("使用默认配置")
            }
        }
        
        DispatchQueue.global(qos: .background).async {
            WJUserManager.shared.checkOfferEligibility { eligibility in
                print("应用启动 - 预加载优惠资格: \(eligibility)")
            }
        }

        let hasGuideed = UserDefaults.standard.bool(forKey: guideKey)
        if hasGuideed {
            let vc = WJMainTabViewController()
            window?.rootViewController = vc
            window?.makeKeyAndVisible()
        } else {
            let vc = WJTutorialViewController()
            window?.rootViewController = vc
            window?.makeKeyAndVisible()
        }

        // 检查是否通过文件分享启动
        if let urlContext = connectionOptions.urlContexts.first {
            let url = urlContext.url
            handleShareingFileURL(url)
        }
        
       let _ = WJPurchaseManager.shared
    }
    
    func configDatabase() {
        do {
            // 初始化所有数据库
            try WJDBManager.shared.initializeAllDatabases()
            
            // 初始化各个模型的表
            try WJPDFListModel.setupDatabase()
            try WJSignatureHistoryModel.setupDatabase()
            try WJFontFile.setupDatabase()
            
        } catch {
            print("数据库初始化失败: \(error)")
        }
    }
    
    private func preloadFonts() {
        // 如果需要在启动时就预加载字体，可以在这里调用
        WJFontManager.shared.copyFolderToSandbox()
    }

    func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
        // 处理通过文件分享打开的场景
        guard let urlContext = URLContexts.first else { return }
        let url = urlContext.url
        handleShareingFileURL(url)
    }

    private func handleShareingFileURL(_ url: URL) {
        // 确保是文件URL
        guard url.isFileURL else { return }
        // 安全访问文件
        guard url.startAccessingSecurityScopedResource() else {
            print("无法访问文件")
            return
        }
        defer { url.stopAccessingSecurityScopedResource() }
        // 处理PDF文件
        if url.pathExtension.lowercased() == "pdf" {
            WJPDFFilesImportTool.handlePDFImport(at: url)
        }
    }

    func sceneDidDisconnect(_ scene: UIScene) {
        // Called as the scene is being released by the system.
        // This occurs shortly after the scene enters the background, or when its session is discarded.
        // Release any resources associated with this scene that can be re-created the next time the scene connects.
        // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
    }

    func sceneDidBecomeActive(_ scene: UIScene) {
        // Called when the scene has moved from an inactive state to an active state.
        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
    }

    func sceneWillResignActive(_ scene: UIScene) {
        // Called when the scene will move from an active state to an inactive state.
        // This may occur due to temporary interruptions (ex. an incoming phone call).
    }

    func sceneWillEnterForeground(_ scene: UIScene) {
        // Called as the scene transitions from the background to the foreground.
        // Use this method to undo the changes made on entering the background.
    }

    func sceneDidEnterBackground(_ scene: UIScene) {
        // Called as the scene transitions from the foreground to the background.
        // Use this method to save data, release shared resources, and store enough scene-specific state information
        // to restore the scene back to its current state.
    }
}

